20993841

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11161}}^1$

素因数の和:11197

約数の個数: 24

約数和(自身を含む): 34825440

約数和(自身を除く): 13831599

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 11161, 33483, 100449, 122771, 212059, 368313, 636177, 1104939, 1908531, 2332649, 6997947, 20993841]

約数ペア:

[(1, 20993841), (3, 6997947), (9, 2332649), (11, 1908531), (19, 1104939), (33, 636177), (57, 368313), (99, 212059), (171, 122771), (209, 100449), (627, 33483), (1881, 11161)]